ดิษฐสอน จรัสศรี. “Factors Affecting Staff Satisfaction in using the Parcel Service Faculty of Liberal Arts, Rajamangala University of Technology Thanyaburi”. Journal of Humanities and Social Sciences, Rajapruk University 5, no. 3 (January 31, 2020): 148–162. accessed August 29, 2026. https://so03.tci-thaijo.org/index.php/rpu/article/view/237784.